EI2I_4_projet_1_2017-2018
/
SSD1306
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Dependencies: mbed
Fork of
SSD1306
by 
Masato YAMANISHI
Revision 4:ec5add86f335, committed 2014-05-04
- Comitter:
- masato
- Date:
- Sun May 04 14:29:51 2014 +0000
- Parent:
- 3:1d9df877c90a
- Child:
- 5:4b89cc384f43
- Commit message:
- derived from Aidafruit SSD1306 library
Changed in this revision
| ssd1306.cpp | Show annotated file Show diff for this revision Revisions of this file |
| ssd1306.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/ssd1306.cpp Sat Feb 09 16:43:49 2013 +0000
+++ b/ssd1306.cpp Sun May 04 14:29:51 2014 +0000
@@ -4,6 +4,8 @@
#include <stdarg.h>
+#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
+
SSD1306::SSD1306(PinName cs, PinName rs, PinName dc, PinName clk, PinName data)
: _spi(data, NC, clk),
_cs(cs),
@@ -243,6 +245,19 @@
_send_data(_screen[i]);
}
+void SSD1306::drawBitmap(int x, int y,
+ const unsigned char *bitmap, int w, int h, int color) {
+ int16_t i, j, byteWidth = (w + 7) / 8;
+
+ for(j=0; j<h; j++) {
+ for(i=0; i<w; i++ ) {
+ if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
+ color? set_pixel(x+i, y+j): clear_pixel(x+i, y+j);
+ }
+ }
+ }
+}
+
void SSD1306::set_pixel(int x, int y)
{
if (x >= SSD1306_LCDWIDTH || y >= SSD1306_LCDHEIGHT) return;
--- a/ssd1306.h Sat Feb 09 16:43:49 2013 +0000
+++ b/ssd1306.h Sun May 04 14:29:51 2014 +0000
@@ -181,7 +181,8 @@
// ----- BUFFER EDITING -----
- void clear();
+ void clear();
+ void drawBitmap(int x, int y, const unsigned char *bitmap, int w, int h, int color = 1);
void set_pixel(int x, int y);
void clear_pixel(int x, int y);
void line(int x0, int y0, int x1, int y1);